Single low error depends_on:MBEDTLS_NET_C error_strerror:-0x0042:"NET - Failed to open a socket" Single high error depends_on:MBEDTLS_X509_CRT_PARSE_C error_strerror:-0x2280:"X509 - The serial tag or value is invalid" Non existing high error error_strerror:-0x8880:"UNKNOWN ERROR CODE (8880)" Non existing low error error_strerror:-0x007F:"UNKNOWN ERROR CODE (007F)" Non existing low and high error error_strerror:-0x88FF:"UNKNOWN ERROR CODE (8880) \: UNKNOWN ERROR CODE (007F)"